Measurement of the production and elliptic flow of (anti)nuclei in Xe-Xe collisions at root sNN=5.44 TeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F24%3A00380511" target="_blank" >RIV/68407700:21340/24:00380511 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevC.110.064901" target="_blank" >https://doi.org/10.1103/PhysRevC.110.064901</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevC.110.064901" target="_blank" >10.1103/PhysRevC.110.064901</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of the production and elliptic flow of (anti)nuclei in Xe-Xe collisions at root sNN=5.44 TeV

Popis výsledku v původním jazyce

Measurements of (anti)deuteron and (anti)He-3 production in the rapidity range |y| < 0.5 as a function of the transverse momentum and event multiplicity in Xe-Xe collisions at a center-of-mass energy per nucleon-nucleon pair of root s(NN) = 5.44 TeV are presented. The coalescence parameters B-2 and B-3 are measured as a function of the transverse momentum per nucleon. The ratios between (anti)deuteron and (anti)He-3 yields and those of (anti)protons and pions are reported as a function of the mean charged-particle multiplicity density and compared with two implementations of the statistical hadronization model and with coalescence predictions. The elliptic flow of (anti)deuterons is measured for the first time in Xe-Xe collisions and shows features similar to those already observed in Pb-Pb collisions, i.e., the mass ordering at low transverse momentum and the meson-baryon grouping at intermediate transverse momentum. The production of nuclei is particularly sensitive to the chemical freeze-out temperature of the system created in the collision, which is extracted from a grandcanonical-ensemble-based thermal fit, performed for the first time including light nuclei along with light-flavor hadrons in Xe-Xe collisions. The extracted chemical freeze-out temperature T-chem = (154.2 +/- 1.1) MeV in Xe-Xe collisions is similar to that observed in Pb-Pb collisions and close to the crossover temperature predicted by lattice quantum chromodynamics calculations.

Název v anglickém jazyce

Measurement of the production and elliptic flow of (anti)nuclei in Xe-Xe collisions at root sNN=5.44 TeV

Popis výsledku anglicky

Measurements of (anti)deuteron and (anti)He-3 production in the rapidity range |y| < 0.5 as a function of the transverse momentum and event multiplicity in Xe-Xe collisions at a center-of-mass energy per nucleon-nucleon pair of root s(NN) = 5.44 TeV are presented. The coalescence parameters B-2 and B-3 are measured as a function of the transverse momentum per nucleon. The ratios between (anti)deuteron and (anti)He-3 yields and those of (anti)protons and pions are reported as a function of the mean charged-particle multiplicity density and compared with two implementations of the statistical hadronization model and with coalescence predictions. The elliptic flow of (anti)deuterons is measured for the first time in Xe-Xe collisions and shows features similar to those already observed in Pb-Pb collisions, i.e., the mass ordering at low transverse momentum and the meson-baryon grouping at intermediate transverse momentum. The production of nuclei is particularly sensitive to the chemical freeze-out temperature of the system created in the collision, which is extracted from a grandcanonical-ensemble-based thermal fit, performed for the first time including light nuclei along with light-flavor hadrons in Xe-Xe collisions. The extracted chemical freeze-out temperature T-chem = (154.2 +/- 1.1) MeV in Xe-Xe collisions is similar to that observed in Pb-Pb collisions and close to the crossover temperature predicted by lattice quantum chromodynamics calculations.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

<a href="/cs/project/LM2023040" target="_blank" >LM2023040: Výzkumná infrastruktura pro experimenty v CERN</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

PHYSICAL REVIEW C

ISSN

2469-9985

e-ISSN

2469-9993

Svazek periodika

110

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

23

Strana od-do

—

Kód UT WoS článku

001389551300008

EID výsledku v databázi Scopus

2-s2.0-85212390524